Mantis Bug Tracker (MantisBT) is a Web-based issue tracking system that is both simple to use and highly customisable. A plugin system allows users to easily create and add new features. MantisBT is over 10 years old and is actively developed.

RackTables is a tool to manage tens of racks, hundreds of servers, and thousands of MAC and IP addresses. It will work with a single rack as well. It features a real-life rackspace model, typed rack objects with flexible attribute sets, a tagging system, IP address management ready for NAT, virtual routers and load balancers, accurate network connection handling, a universal search function, a multi-user access model, and an extensible dictionary.

Apache Toolbox provides a means to easily compile
Apache (IPv4/6) SSL, PHP(v3/v4), MySQL, Jakarta, a
large number of modules (61 3rd party modules and
36 default Apache modules, static or as DSOs), and
GD libraries with PNG+JPEG+Freetype2+zlib support.
It is fully customizable and menu-driven.
Everything is compiled from source, and wget is
used to download any missing modules. It can also
check for RPMs that might cause problems and
create an RPM with your selections.

WikkaWiki is a lightweight and flexible wiki
engine allowing easy management of Websites, in
particular collective Web-based projects: it
provides an intuitive interface for modifying page
content, tracking and comparing revisions made by
single users, and setting user access privileges.
It features W3 compliant XHTML and CSS output,
several text formatting options, categories, a GUI
for editing pages, support for images, tables,
Flash objects, RSS feeds, FreeMind maps, advanced
Access Control List management, referrers
management, and text search functions. Designed
for easy customizability, it aims at keeping its
core as light as possible while maintaining an
architecture that supports extensibility through
plugin modules.

Turba is the Horde contact management application. It is a production level address book, and makes heavy use of the Horde framework to provide integration with IMP and other Horde applications. It supports SQL, LDAP, Kolab, and IMSP address books.

Camera Life is a system for cataloging your photo
collection. It gives users the ability to search
or browse your archive in intuitive ways, with an
attention to powerful administrative functions.
Photos can be stored locally, on a remote server,
on Amazon S3, or on Flickr. The theme and icons
can be easily customized. It is compatible with
the Gallery Remote API (so you can upload with
iPhoto, Digikam, and Java). It is RSS enabled,
supports microformats and OpenSearch, and has a
special version of the site for iPhone/iPod touch.
AJAX is used to optimize the site as necessary.

Cacti is a complete frontend to RRDTool. It stores
all of the necessary information to create graphs
and populate them with data in a MySQL database.
The frontend is completely PHP driven. Along with
being able to maintain graphs, data sources, and
round robin archives in a database, Cacti also
handles the data gathering. There is SNMP support
for those used to creating traffic graphs with MRTG.

Google Map GPS Cell Phone Tracker allows you to track Android, iOS, Windows Phone, and Java ME cellphones using Google Maps. It has two parts, a server and phone clients. You have a choice of two servers, using asp.net and SQL server or PHP and MySQL. The server software allows you to view cellphone locations in realtime using Google Maps and store routes and view them later. The client applications send their locations to the website periodically. All four applications work properly in the background and are written natively on each platform.